Tire-casing.



W. BRYANT 6L J. J. MGGANN.

TIRE GASING.

APPLICATION FILED 211.10, 1914.

Patellttd 0G13. 20, 1914.

2 SHEETS-SHEET 1.

W. BRYANT da J. J. MGGANN.

TRE CASING.

CATION FILED PEB.10,1914

APPLI UNITED 'STATES PATENT OFFICE.

WILLIAM BRYANT AND JOHN JAMES MCCANN, 0F WINNIPEG, MANITOBA, CANADA.

TIRE-CASING.

Spccmcation of Letters Patent.

Patented Oct. 20, 1914.

Application led February 10, 1'914. Serial No. 817,868.

To all whom it may concern.'

Be it known that we, WILLIAM BRYANT and JOHN Jam-:s MCCANN, subjects of the King of Great Britain, residing at Winnipeg, in the Province of Manitoba, Canada, have invented certain new and useful Imrovenients in Tire-Casings, of which the ollowing is a specification.

This invention relates to the sub'ect of pneumatic tires for automobiles .an other vehicles, and more particularly to an 1mproved puncture resisting casing or shoe for ltires of this character.

To this end, the invention primarily has in view a puncture resisting tire casing possessing great strength and wearing capacity, while at the same time having the necessary Vresiliency and'iiexibility. In this connection, the invention also contemplates a novel trend construction combined with leather cover pieces in such a manner as to provide a tire casin which is not only puncture resisting an of maximum strength and endurance, but is also not subject to blowouts from any bf the usual causes, thereby rendering'the improved casing particularly available for use on rough roads,funder any and al1 conditions of service, without being liable to punctures and blow-outs to which thbc1 ordinary rubber tires are so suscepti e.

A further object of the invention is to provide a novel casin and tread construction which may be utilized as a complete tire casing or shoe, or as a repair cover for a worn or broken tire.

With these and other objects in4 view which will more readily appear as the nature of the invention is better understood, the same consists of the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

Though susceptible of modification, certain preferable embodiment-s of the invention are shown in the accompanying drawin s, in whichigure 1 is a half of an automobile wheel, showing in elevation a tire casing mounted thereon and embodying the present invention. Fig 2 is an enlar ed cross sectional view on the line 2-2 of iig. 1. Fig. 3 is a view similar to Fig. 2 showing the improved casing used as arepair cover. Fig. 4 is a View similar to Fia'. 1 showing the employment of metal anti-skid plates. F ig. 5 is a cross sectional view on the line 5-5 of Fig. 4. Fig. 6 is a longitudinal detail vieu' of a section of the tread showing the use of a reinforcinfr wire on the line 6 6 of Fig. 5.

Like reierenceclniractcrs designate corresponding parts in the several figures-of the drawings.

Referring to the preferable embodiment of the'invention shown in the drawings, the improved tire casing includes in its orgranization, the opposite main sidecovcr pieces 1-1 which are of circular forni and' are adapted to extend about the tire body. These pieces may be of continuons lengths or made in adjoining sections at the option of the manufacturer, and each of the Lame is preferably formed from chrome-tamied or equivalent soft and pliable leather of sufficient thickness and strength to eticotually resist and prevent blow-out tendencies, and to maintain, without. undue strain, the res'cribed internal air pressure carried by t e inner tube of the tire.

A. practical feature of the invention resides in having each of the circular coverpieces larran ed with its inner edge ncrtion wrapped a out, and vulcanized orotherwise permanently united to one of the clencher cores 2 to form a strong and substantial clencher element 3 for the tire casing. The opposite or outer edge portion of each side cover-piece 1 is pressed outward to form an outside outwardly projecting circumferential clamping lange 4 cooperating with an inside similar clamping fiange. This flange 5 is preferably formed by turning outwardly one or more plies at the outer edge of a stout inner fabric lining 6 which is vulcanized or otherwise permancntlv united with the cover-piece at the inner side thereof. The said inner fabric lining 6. for euch cover piece, has the inner edge portion thereof wrapped about, and vulcanized or otherwise permanently secured to` the core 2 of the clencher element 3, and at its outer edge portion the said lining 6 may have one of its plies, as indicated at 7. extended to form n shielding fiap beneath the center part of the tread section of the tire casing. It is to be observed that the inside clamping tion. These leather strips 9 are preferably made of chrome-tanned leather or an equiv v alent leather which is soft, pliable, and elastic, and which will so closely and tightly compact, under pressure imposed upon the edges thereof, as to form a wearing tread for the tire having a maximum strength, integrity, resiliency, endurance, and yielding wearing face, together with a maximum resistance against perforations and other injuries.

Any desired number of the circular leather tread units or strips 9 may be compacted in -a side-by-side relation between thesfianges 4 and 5, and these elements are securely held in that relation by means of a plurality of transverse tie bolts l0 passing through the paired flanges 4 and 5 at intervals, and also through the units or strips 9 between said flanges. Furthermore, one of the units 9a may be clamped between the two inside clamping flanges 5, and such unit or units iind a base y(il) on the overlapping shielding flaps 7. Also Ait may be found desirable and preferable to rubberize the adjoining faces of the compacted tread units or strips 9 so that the whole may be vulcanized together to form a substantially homogeneous tread section wherein great resiliency is provided, while at the same time the edgewise disposition of the units or strips provides a tough and durable wearing surface. l Furthermore, it is to be observed in connection With the novel arrangement of the units or strips 9 between the flanges 4 and 5 of each cover piece, that lateral separation or opening of the tread section is obriated, and when pressure or load is imposed on the outer edge of the strips 9, the saine tend to crush with the result of presenting a surface that odors great resistance to puncture. A further feature of novelty and practicability is that vof the base section 8 of the inner fabric lining 6 forming a substantial protective base or shield between the inner edges of the units or strips 9 and the inner tube 15.

lf desired to give greater resilience to the tread section, a few felt or equivalent strips il may be interspersed throughout said section between the main tread units and should it be desired to improve the non-skidding properties of the tread section. anti-` skid channel plates 12 may be placed over the tread secticinin any desired number, and held in place by the tie bolts 10 passing through the end tlanges 13 of such olates. Also, as shown in the modication of Figs. 5 and G additional reinforcement may be cbtained for the tread section by extending reinforcing wires il between some of the treadvunit-s, said reinforcing wires being woven about the tie bolts l0, as shown.

The structure described may be employed vas the regular outer casino of the tire to receive the inner tube l5, or as a repair cover. In its use as a repair cover, the improved casing may be fastened over `and onto the old casing or shoe C by means of the rivets 16, as shown in Fig. 3 ofthe drawings, or by Yulcanization or otherwise, vbut in this use, as well as in its use as the complete tire casing or shoe itself, the' structural features remain the same and perform the same functions.

From the foregoing, it. is thought that the construction and adyantages of the hereindescribed improvement in tire casings will be readily apparent Withoutfurther description, and it will also be understood that various changes in the form, proportion, and minor details of construction may beresorted to without departing from the spirit, or sacrificing any of the advantages of the invention.

We claim:

l. A tire casing including oppositely ar`4 ranged-side cover pieces, each provided at its outer edge with an outside circumferential Aclamping flange and with a doublelayered fabric lining, certain of said layers provided with an inside clamping flange disposed substantially at the circumferential center of the tread section, and other of said layers overlapping to completely7 protect the inner tube, and tread units clamped between said outsi'de and inside flanges.

2. A tire casing including opposite side cover pieces, each having an outside clamping flange and an inner double-layered fabric lining, the outer'layers thereof being formed with inside clamping iianges, and the inner layers of said inner fabric overL lapping at their meeting edges,a plurality of tread units disposed edgewise and arranged between the outside and inside clamping flanges of each cover piece and bearing on the outer layer of fabric lining,

and av tread unit clamped between the inside flanges' formed by the outer of said lining layers of the Aopposite cover sections and bearing on the overlapped portion of the inner one of said layers.

3. A tire casing including oppositely arranged side cover pieces, each having an outside clamping flange and an inner doublelayered fabric lining, the outer layer of said fabric lining of each cover piece having its edges to formL an. inside shielding flap, and

ilition between the outside and inside flanges'y outer edge portion formed with an inside In testimony whereof We hei'eunto aix oui' clamping flange,` and the inner layersof said signature in the presence of two Witnesses. 10 inner fabric overlapping at their meeting l WILLI AM BRYANT JOHN JAMES MCCANN.

a plurality of oircula treadvstrips disposed edgewse and compacted in side by side re-l :Witnesses:

` A. lNAirm-mn,v

ofthe cover pieees. l F. E. BARBER. 

